html, body
  --primary-color #3b67bb
  --common-bg #F7F7F7
  --common-txt-size 14px
  --max-width 768px
  background-color var(--common-bg)
  font-size var(--common-txt-size)
  font-family -apple-system, BlinkMacSystemFont, PingFang SC, Microsoft YaHei, SourceHanSansCN, Noto Sans， Helvetica Neue， Arial，Roboto
  overflow-y auto

  &::-webkit-scrillbar
    display none !important

  #app
    width 100%
    //max-width var(--max-width)
    margin 0 auto

  .flex-center
    display flex
    align-items center
